Hollow metal tile for reinforced-concrete floors.



G. B. WAITE HOLLOW METAL TILE FOR mzmroncau CONCREIE FLOORS.

- APPLICATION FILED JULYZB, l9l5. 1,250,254.

HEET

s 1 D /Illllll d m 3 M u lIIllIlII/III I QII B) MI I.

. ATTORNEYS.

G. B. WAITE.

HOLLOW METAL TILE FOR REINFORCED CONCRETE FLOORS.

APPLICATION FILED JULY26. 19:5.

1 25 254 Patented Dec. 18, 1917.

2 SHEETSSHEET 2- ATTORNEYS,

' To all whom it may concern? v UNITED STATES PATENT @FFIGE.

GUY BENNETT WAITE, OF NEW YORK, N. Y.

HOLLOW METAL TILE FOR REINFORCED-CONCRETE FLOORS.

Be it known that I, GUY B. WAITE, a citizen of the United States, andresident of the borough of Manhattan, city, county, and State of NewYork, have invented certain new and useful Improvements in Hollow MetalTiles for Reinforced-Concrete Floors, of which the following is'aspecification.

This invention relates to certain improvements in the construction ofhollow metal tilesused in concrete floors to form-blank or. hollowspaces therein. In the manufacture of hollow metal tiles heretofore usedit was necessary to use a comparatively thick or heavy-gage metal inorder'that they might maintain their shape during the process of moldingthe concrete floor. It is necessary that these hollow metal tiles shallbe of sufliprovide a hollow metal tile of extremely,

cient strength and stiffness to maintain their shape and resist thepressure of the wet concrete.

In the use of hollow metal tiles in floors it is necessary to providesome simple, con venient and cheap means for closing the lower side ofthe tiles if it be desired to have a smooth ceiling, and these closuredevices must be of such character that they may be easily and securelyanchored to the.

concrete and to the hollow metal tiles which they support.

It is the main object of this invention to simple construction and whichwill be so strongly braced to resist the pressure of the concrete thatit may be made of extremely light and thin metal.

Another object of this invention is to provide hollow metal tiles whichare adapted to be overlapped in a series, the inclosed end of one tilebeing thoroughly braced and forming a substantial supporting means forthe overlappin end of the adjoining tile.

A further 0 ject of the invention is to rovide a perforated or expandedmetal lath, 1n sections, adapted to be used as a means for closing thelower ends of the hollow tiles, said lath sections being provided-withmeans for anchoring them to the inclosing concrete, and also. beingprovided with nlileans to interiorly brace the hollow metal t' es.

There are other objects and advantages Specification of Letters Patent.

Patented Dec. 18, 1am.

Application filed July 26, 1915. Serial No. 41,894.

of a portion of a floor support showing a series of metal tiles in placeand supported by the floor beams;

Fig. 2 a longitudinal sectional View through a series of tiles; i

Fig. 3 a transverse sectional view of a series of tiles on a largescale;

Fig. 4 a detail perspective view of one of the metal tiles;

Fig.5 a similar View of two overlapped tiles;

Fig. 6 a detail perspective View of the end cap for closing the end ofthe series of tiles, said end cap being partially formed;

Fig. 7 a detail horizontal view of a portion of a tile showing the endcap in place thereon; and

Fig. 8 a detail perspective View of one of the metal tiles 'used toclose the lower end of the hollow metal tile.

Referring to the various parts by numerals, 1 designates the ordinaryfloor supports or beams of a reinforced concrete floor. Secured to thesebeams are temporary supports 2 hung from the beams, preferably by wirloops 3. On these temporary supports 2 are placed perforated metal laths4. These laths bridge the space between the supports, as shown clearlyin Fig. 3, and on these laths rest the hollow metal tiles 5. These tilesare arranged in a series extending from one floor beam to the nextadjoining beam, as shown in Fig. 1.

v Each tile is preferably formed from a single sheet of metal andconsists of a top 6 and two sidewalls 7. One end 8 of the tile of in anysuitable manner, said fol ed-in or crimped material serving to stronglyreinforce the tile at the corners thereof. The tiles are placed on theperforated metal laths in such manner that the open end 8 of one tilewill overlap and receive the flanged and braced end of an adjoiningtile. In this manner the flanged end of one tile serves as an eflicientsupport and brace for the unfianged end of an overlapping tile.

The perforated metal laths are arranged on thesupports 2 end to endacross the r Em spaces between the supporting beams 1. The side edges ofthese laths are bent npwardly to form the flanges 11 which pro ectbeyond the lower edges of the hollow metal to slide in under the top ofthe tile as shown tiles and are adapted to be interlocked with theconcrete. Each lath is formed with a series oftransverse metal ribs 12,said ribs being adapted to fit within thc hollow tile supported by thelath and to brace the sides thereof against inward strain due to thepressure of the wet concrete.

v To close the open end of the first tile of a series of tiles toprevent concrete entering the said tiles,'an end cap 13'is provided.This .end cap consists of the vertlcal end wall 14:, the horizontal top15 and the folded interlocking sides 16. The top 15 is adapted inFig. 2,and the upper portions 17 of the side walls are adapted to slidewithinthe; tile and to engage the inner side thereof arranged, reinforcin rods18 are placed between the rows of. ti es, as shown'clearly in as shownclearly in Fig. 7, while the lower portions of said walls engage theouter surfaces of the sides ofthe tile. By thls means the open end ofthe first tileoif the-series is thoroughly braced and supported by theend cap, the top of the. cap preventing'the f an inward pressure andalso against a presdepression of the tOpof the tile; and the endwalls ofthe cap interlocking with-the side walls of the tile hold said wallsagainst;-

' metal tiles constructed in accordance with sure tending to spread themat their lower edges. The flanged or reinforced end ofthe tile, at theother end of the overlapped a series may be closed by any suitablemeans.

In closing this end of the series of tiies it is bracing cap 13, itbeing only necessary to ot the last tile, as shown in Fig. 2. This notnecessary to provide the reinforcing and use the end cap on the unbracedand un- "fian'ged end of the tile. ll prefer to close this and of theseries of tiles by means of a fiat metal plate placed against the bracedend plate is held in place by the concrete, or by any suitable fasteningdevices. 1

This maybe readily done whether the linarrangmg a senesfof tiles on the.ternporary supports and between the floor beams the said tiles maybeoverlapped ;at their ends as may be necessary :to properly] adjust thetiles to the space-between t -e beams.

tiles are corrugated or smooth. wilL-of course, be understood that themetal of the tiles maybe corrugated if desired, or it may be otherwisegrooved or deformed in order to stifien the completed tile. By corrugat-'-ing the tiles so that their overlappedpor-i.

tions will interlock they will be held against longitudinal slippingorsliding movement under the pressure of the wet concrete. This isdesirable for the reason that the concrete is first applied atone end ofthe series of tiles and then tamped and worked toward the other end.This form of the tile is illustrated in Fig. 9 of the drawings. By

as the said inclosed cap is rigidly braced 'f the result is that theconcrete forces the overlapped part of the caps close together andprevents concrete passing between them. It has been found that whenoverlapping, un-

braced metal tiles are used, the concrete .de--

presses the inner tile, leaving a space be-,

tween the tiles through which the wet concrete may pass.

The perforated metal lath forms a com- .paratively smooth ceiling. andis especially well adapted for receiving ;the ceiling plaster.

When the tiles and laths are properly Fig. 3, and then the concrete 19is poured in place' When the concrete is hardened the upturned orflanged edges of the laths are'embedded and thoroughly anchored in theconcrete so that the supports 2 may be removed and the ceiling finished.

It will'be readily understood that hollow this invention may be nestedinto a compact package for transportation. It is also mani:

'festthat Very thin metal may be used inthe manufacture of the tiles,said tiles being thoroughly braced by overlapping them and providing theflange reinforcement at each overlapped end of the tile. It is obviousthatother forms of stops or braces maybe formed on the lath to hold thesides of the tile'against inward pressure. L" What ll claim is:

1. A reinforced concrete floor comprising supports, a series of hollowmetal tiles in the'form of caps having closed to s and sides and oneopen end, means for racing 1 the other end of each of said tiles, -saidtiies being arranged in series across-the space between the supports theopen end of e reinforced or braced,

onetile fitting over It end. of the adjoining tile, means forcl'osingits and bracing the openend ofthe first tile of the series, aperforatedmetal lath closing,

the bottoms or said tiles, means iorlan'chor-f ing' saidmetal lathsjinthe concrete between its the hollow'metal tiles, and means carried bythe lathswithin the tile to brace the sides of the tiles against inwardmovem ent,

and a mass of concrete. 2. A. reinforced concrete fioorcomprisingsupports, a series of hollow metal tiles in the form of caps each caphaving a closed bracing the other end of. each of said tiles,

top and sides and one open end, means for the space between thesupports, the open end of one tile fitting over the braced end of theadjoining tile, and an end cap for closing and bracingthe open end ofthe first tile of the series said end cap being formed with a topadapted to fit under the top of the tile, and with interlocking sidesadapted to embrace the sides of the tile to brace them against bothinward and outward strains.

3. A reinforced concrete floor comprising supports, a series of hollowmetal tiles in the form of-caps said tiles being arranged in a seriesacross the space between the supports, the end of one tile fitting overthe adjoining end of the next tile, and an end cap for closing andbracing the open end of the end tile ofthe series said end cap be- '-ingformed with a top adapted to fit under the top of the tile and withinterlocking sides adapted to embrace the sides of the tile and bracethem against both inward and outward strains. 1 i

4. An end cap for closing and bracing the open end of hollow metaltiles, said cap' being formed with atop adapted to fit under the topofthe tile and with double side 'walls adapted to interlock with the sidesof the tile to brace said sides against both inward and outward strains.

s0 5. A reinforced concrete floor comprising spaced supports, rows oftelescoped hollow metal tiles extending between the supports, said tilescomprising integral top and side plates formed with inwardly extending-bracing flanges at one end and being en- .tlrely open at the oppositeend and at the bottom, the open end of one tile slidably embracing thebraced end of the adjoinin tile whereby said tiles may be telescopelongitudinally one Within the other to vary the length of the rows, anda mass of concrete embedding said tiles.

6. A reinforced concrete floor comprising spaced floor beams, rowsof-telescoped hollow' metal tiles extending transversely between thebeams, said tiles comprising integral'top and side plates formed withinwardlyextendin bracing flanges at one end and being entire y open atthe opposite end and at the bottom, the open end of one tile fittingover the braced end of the adjoining tileand adjustable longitudinallythereupon,

metal lath closing the bottomsof said tiles, means carried by the lathto brace the side walls of the tiles against inward pressure, and a massof concrete embedding said tiles.

In testimony whereof I hereunto aflix my signature.

GUY BENNETT WAITE.

